在Flex中调用Java函数

发布于 2024-07-15 11:00:00 字数 1079 浏览 7 评论 0原文

现在我正在尝试了解 Flex 如何与 Java 配合使用（Flex -> BlazeDS -> Java）。我尝试遵循这个教程和所有内容工作正常，我只是不明白为什么我们需要这样调用java函数：

<mx:Script>
    <![CDATA[
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.ResultEvent;

        // Send the message in response to a Button click.
        private function echo():void {
            var text:String = ti.text;
            remoteObject.echo(text);
        }

        // Handle the recevied message.
        private function resultHandler(event:ResultEvent):void {
            ta.text += "Server responded: "+ event.result + "\n";
        }

        // Handle a message fault.
        private function faultHandler(event:FaultEvent):void {
            ta.text += "Received fault: " + event.fault + "\n";
        }
    ]]>
</mx:Script>

为什么我们需要使用Event/ResultEvent来调用Java函数。为什么不直接做这样的事情：

EchoService.echo("hi")

谢谢

原文

Right now I'm trying to understand how Flex works with Java (Flex -> BlazeDS -> Java).
I tried to follow THIS tutorial and everything works fine, I just don't understand why do we need to call java function this way:

<mx:Script>
    <![CDATA[
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.ResultEvent;

        // Send the message in response to a Button click.
        private function echo():void {
            var text:String = ti.text;
            remoteObject.echo(text);
        }

        // Handle the recevied message.
        private function resultHandler(event:ResultEvent):void {
            ta.text += "Server responded: "+ event.result + "\n";
        }

        // Handle a message fault.
        private function faultHandler(event:FaultEvent):void {
            ta.text += "Received fault: " + event.fault + "\n";
        }
    ]]>
</mx:Script>

Why do we need to use Event/ResultEvent in order to call Java function. Why not just to do something like this: